# US 11,115,901 B2 · Network access method, network device, and terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,901 B2 - Document ID: US11115901B2 - Status: Granted - Kind: B2 - Application number: 16/675,147 - Filed: 2019-11-05 - Published: 2020-03-05 - Granted: 2021-09-07 - Earliest claimed: 2017-05-05 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xiaoli Shi; Kaijie Zhou; Min Huang - Web page: https://patentgrep.com/patent/US11115901B2 ## CPC - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - H04W 8/18: Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data - H04W 24/02: Arrangements for optimising operational condition - H04W 28/0215: {based on user or device properties, e.g. MTC-capable devices (services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51)} - H04W 48/02: Access restriction performed under specific conditions - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/51: based on terminal or device properties - H04W 76/11: Allocation or use of connection identifiers - H04W 76/14: Direct-mode setup - B64U 2101/20: for use as communications relays, e.g. high-altitude platforms - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR ## Abstract This application discloses a network access method, a network device, and a terminal. The method includes: obtaining, by a network device, indication information, where the indication information is used to indicate whether the terminal supports air communication; and when the indication information indicates that the terminal supports the air communication, determining, by the network device, that the terminal is allowed to access a network in which the network device is located. In this application, a quantity of unmanned aerial vehicle terminals that access the network can be limited, reducing interference caused by the unmanned aerial vehicle terminals to another terminal in the same network as the unmanned aerial vehicle terminals, and improving communication quality of the another terminal. ## Claims ### Claim 1 A network access method, comprising: obtaining, by a network device, indication information, wherein the indication information indicates whether a terminal supports air communication and wherein a space domain location area and a ground location area have different location area identities; obtaining, by the network device, a location area identity of a location of the terminal and when the indication information indicates that the terminal supports the air communication, determining, by the network device, that the terminal is allowed to access a network in which the network device is located, or when the location area identity indicates that the location of the terminal is in the space domain location area, and the indication information indicates that the terminal does not support the air communication, determining, by the network device, that the terminal is prohibited from accessing the network in which the network device is located. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: obtaining, by the network device, height information of the terminal; and when a height value indicated by the height information exceeds a preset height threshold, and the indication information indicates that the terminal does not support the air communication, determining, by the network device, that the terminal is prohibited from accessing the network in which the network device is located. ### Claim 3 (depends on 1) The method according to claim 1, wherein the obtaining, by a network device, indication information comprises: receiving, by the network device, capability information from the terminal, wherein the capability information is used to indicate that the terminal supports the air communication. ### Claim 4 (depends on 1) The method according to claim 1, wherein the obtaining, by a network device, indication information comprises: receiving, by the network device, a sequence from the terminal, wherein the sequence is used to indicate whether the terminal is an unmanned aerial vehicle terminal that supports the air communication; and the method further comprises: when the sequence indicates that the terminal is the unmanned aerial vehicle terminal that supports the air communication, determining, by the network device, that the terminal supports the air communication. ### Claim 5 (depends on 1) The method according to claim 1, wherein the obtaining, by a network device, indication information comprises: detecting, by the network device, whether the terminal has a flight certificate, wherein the flight certificate is used to authorize communication of the terminal in a space domain; and the method further comprises: when the terminal has the flight certificate, determining, by the network device, that the terminal supports the air communication. ### Claim 6 (depends on 1) The method according to claim 1, wherein the obtaining, by a network device, indication information comprises: detecting, by the network device, whether the terminal has subscription information in the network in which the network device is located; and the method further comprises: when the terminal has the subscription information, determining, by the network device, that the terminal supports the air communication. ### Claim 7 A network access method comprising: obtaining, by a network device, indication information, wherein the indication information indicates whether a terminal supports air communication; wherein a space domain location area and a ground location area have different location area identities; the obtaining, by a network device, indication information comprises: when the terminal performs cell handover, obtaining, by the network device, a location area identity of a source cell before the terminal performs cell handover; and the method further comprises: when the location area identity of the source cell indicates that the source cell is the space domain location area, determining, by the network device, that the terminal supports the air communication, and when the indication information indicates that the terminal supports the air communication, determining, by the network device, that the terminal is allowed to access a network in which the network device is located. ### Claim 8 (depends on 7) The method according to claim 7, wherein the obtaining, by the network device, indication information comprises: receiving, by the network device, capability information from the terminal, wherein the capability information is used to indicate that the terminal supports the air communication. ### Claim 9 (depends on 7) The method according to claim 7, wherein the obtaining, by the network device, indication information comprises: receiving, by the network device, a sequence from the terminal, wherein the sequence is used to indicate whether the terminal is an unmanned aerial vehicle terminal that supports the air communication; and the method further comprises: when the sequence indicates that the terminal is an unmanned aerial vehicle terminal that supports the air communication, determining, by the network device, that the terminal supports the air communication. ### Claim 10 (depends on 7) The method according to claim 7, wherein the obtaining, by the network device, indication information comprises: detecting, by the network device, whether the terminal has subscription information in the network in which the network device is located; and the method further comprises: when the terminal has the subscription information, determining, by the network device, that the terminal supports the air communication. ### Claim 11 A network access method, comprising: sending, by a terminal, indication information to a network device, wherein the indication information is used to indicate whether the terminal supports air communication; requesting, by the terminal, to access a network in which the network device is located; and sending, by the terminal, a location area identity of a location of the terminal to the network device, wherein when the location area identity indicates that the location of the terminal is in a space domain location area, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located. ### Claim 12 (depends on 11) The method according to claim 11, wherein the method further comprises: sending, by the terminal, height information to the network device, wherein when a height value indicated by the height information exceeds a preset height threshold, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located. ### Claim 13 (depends on 11) The method according to claim 11, wherein the sending, by a terminal, indication information to a network device comprises: sending, by the terminal, a sequence to the network device, wherein the sequence is used to indicate whether the terminal is an unmanned aerial vehicle terminal that supports the air communication. ### Claim 14 (depends on 11) The method according to claim 11, wherein the sending, by a terminal, indication information to a network device comprises: sending, by the terminal, capability information to the network device, wherein the capability information is used to indicate that the terminal supports the air communication. ### Claim 15 (depends on 11) The method according to claim 11, wherein the sending, by a terminal, indication information to a network device comprises: sending, by the terminal, a flight certificate to the network device, wherein the flight certificate is used to authorize communication of the terminal in a space domain. ### Claim 16 An apparatus, comprising: a processor and a memory, wherein the memory stores instructions to be executed on the processor, to cause a terminal to perform: sending indication information to a network device, wherein the indication information indicates whether the terminal supports air communication; sending a location area identity of a location of the terminal to the network device; and requesting to access a network in which the network device is located, and when the location area identity indicates that the location of the terminal is in a space domain location area, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the memory further stores instructions executed by the processor, to cause the terminal to perform: sending height information to the network device; and when a height value indicated by the height information exceeds a preset height threshold, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located. ### Claim 18 (depends on 16) The terminal according to claim 16, wherein the indication information comprises a sequence, and the sequence indicates whether the terminal is an unmanned aerial vehicle terminal that supports the air communication. ### Claim 19 (depends on 16) The terminal according to claim 16, wherein the indication information comprises capability information, and the capability information indicates that the terminal supports the air communication. ### Claim 20 (depends on 16) The terminal according to claim 16, wherein the indication information comprises a flight certificate, and the flight certificate is used to authorize communication of the terminal in a space domain.