Nokia has been granted a patent for a system that mitigates power back-off effects when user equipment detects proximity to maximum permissible exposure limits. The system enables emergency signaling to a base station, facilitating adaptations to the radio link to prevent failures during power exposure events. GlobalData’s report on Nokia gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Nokia, Adaptive video coding was a key innovation area identified from patents. Nokia's grant share as of July 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Power exposure event mitigation in user equipment communication
The patent US12075367B2 describes an innovative apparatus and system designed to manage power exposure events in user equipment (UE) through a series of automated processes. The core functionality involves detecting a triggering event related to power exposure, which initiates a timer. The system promptly sends a first indication of this event to a network device before the timer expires. It then calculates an expected power reduction necessary to comply with power exposure requirements, based on the UE's duty cycle. Following the timer's expiration, the system applies a duty cycle reduction and continues to monitor the power exposure event. If the event persists, it sends a third indication of a second expected power reduction and an expected duty cycle reduction to the network device, which can then adapt the radio link accordingly. Adaptation may include actions such as redirecting beams, switching panels, or changing radio access technologies.
Additionally, the patent outlines various methods for transmitting indications of power exposure events and expected power reductions. These indications can be included in uplink control information, power headroom reports, or power back-off reports. The system is designed to ensure efficient communication between the user equipment and the network device, facilitating timely responses to power exposure events. The claims also specify that the first indication may involve setting specific parameters, such as a channel quality indicator index and a rank indicator. Overall, the patent presents a comprehensive approach to managing power exposure in wireless communication systems, enhancing both compliance and operational efficiency.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
