Abstract
User equipment (UE) operating on non-terrestrial networks (NTNs) may experience increased power consumption from frequent, periodic polling of the subscriber identity module / universal integrated circuit card (SIM/UICC) for presence checks and proactive commands. This power consumption can be a factor in NTN scenarios where battery conservation is beneficial. A UE can reduce this power drain by adaptively controlling the SIM polling interval. For instance, when in an NTN mode, the UE can negotiate a new, longer polling interval with the SIM, and may propose an unlimited duration to suspend polling. If an unlimited interval is not supported, the UE can determine an alternative, extended interval based on other parameters, such as the device's out-of-service scan cycle. This negotiation process can reduce modem wake-ups, which may contribute to power conservation and extend battery life during NTN connectivity.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Chen, Edison, "A Method for Reducing Power Consumption in Non-Terrestrial Networks Through SIM Polling Interval Management", Technical Disclosure Commons, (October 03, 2025)
https://www.tdcommons.org/dpubs_series/8667