UE Early Measurement Control for Cellular Power Saving
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Solution Overview
Problem
Current cellular network technologies face issues with high power consumption and resource wastage due to unnecessary secondary cell (SCell) setup triggered by continuous frequency measurements for services that do not require it, leading to increased signaling overhead and inefficient resource utilization.
Innovation Solution
A method and user equipment (UE) that determines whether the initiated service belongs to a first or second service set, temporarily terminating or performing early measurements and reporting based on service type, reducing unnecessary SCell setup and signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the UE continuously performs frequency measurements and transmits early measurement reports for SCell setup, then the setup speed of CA/DC is improved, but the power consumption increases
Solution Approach 1:
The patent changes the operational parameters of early measurement by introducing service-type-dependent control. The UE modifies its measurement behavior based on whether the service belongs to a first service set (requiring SCell) or second service set (not requiring SCell). This parameter change resolves the contradiction by making measurement activity adaptive to actual service requirements, thereby maintaining fast setup speed when needed while reducing power consumption when not needed.
2Reliability
If the UE performs early measurement and transmits reports for all services, then the availability of SCell is improved, but the network resource utilization deteriorates
Solution Approach 1:
The patent applies local quality by differentiating measurement behavior based on service characteristics. Instead of uniformly performing early measurement for all services, the UE selectively performs measurements only for services in the first service set that actually require SCell availability. This localized approach to measurement quality resolves the contradiction by ensuring SCell availability where needed while avoiding network resource wastage for services that don't require it.
3Loss of time
If the UE continuously transmits early measurement reports, then the setup delay of multi-radio DC/CA is reduced, but the signaling overhead increases
Solution Approach 1:
The patent changes the signaling parameter by controlling early measurement report transmission based on service type. The UE transmits reports only when the initiated service belongs to the first service set, thereby reducing unnecessary signaling overhead while maintaining fast setup delay performance for services that actually require SCell addition.
4Adaptability or versatility
If the UE performs early measurement for services not requiring SCell, then the measurement coverage is improved, but the computational complexity increases
Solution Approach 1:
The patent applies local quality by making measurement activity service-specific. The UE performs early measurement only for services in the first service set that require SCell, rather than universally for all services. This resolves the contradiction by providing adequate measurement coverage for relevant services while reducing computational complexity by eliminating unnecessary measurements for services that don't require SCell.
Data Source
Figure 1A
Figure 1B~2A
Figure 2B
AI summary
A method, and a user equipment (UE) for power saving through optimized early measurement of frequencies for secondary cell setup in cellular network are provided. The UE initiates a service with a base station associated with a primary cell supporting the early measurement of the frequencies for the secondary cell (SCell) setup. The UE determines whether the service belongs to one of a first service set, and a second service set. The early measurement of the frequencies for the SCell setup is temporarily terminated, and/or the transmission of an early measurement report comprising the one or more frequencies for the SCell setup to the base station is temporarily terminated. Alternatively, the UE performs the early measurement of the frequencies for the SCell setup and transmits the early measurement report to the base station when the service belongs to the second service set.