Abstract

During events such as emergencies or terrestrial network outages, non-terrestrial networks (NTNs) may need to provide temporary access to specific, non-subscribed user equipment (UEs), such as smartphones or other computing devices, while managing potential network overload. This disclosure describes a method for dynamic and selective access control. An NTN can broadcast authorization data, for example a list of allowed international mobile subscriber identity ranges or an access probability threshold, using a broadcast mechanism such as evolved multimedia broadcast multicast services or a configuration channel like TS.43. On a device, a specialized application can receive this information. If the UE is determined to be authorized based on the received data, the application may utilize a privileged, non-standard application programming interface to send a command to the modem. This command can instruct the modem to bypass certain conventional access barring procedures, such as those from system information block 2, and initiate an attachment to the NTN. This approach can allow network operators to facilitate controlled, temporary connectivity for designated groups of users, which may assist in managing network load during certain situations.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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