Intelligent Band Switching for Cellular Signal Optimization
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Solution Overview
Problem
Current smartphone form factors are not optimized to facilitate the simultaneous use of multiple low frequency bands, leading to inefficiencies in cellular communication.
Innovation Solution
A system and method that allow user equipment (UE) to communicate with a cellular network using multiple low frequency bands, even if the UE's hardware is not optimized for this use, by determining whether to use these bands based on measured signal strength and unoptimized signal loss values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple low frequency bands are used simultaneously for carrier aggregation, then spectral efficiency and coverage are improved, but signal strength loss increases due to hardware not being optimized for this configuration
Solution Approach 1:
The system dynamically adjusts operating parameters by selecting different frequency band combinations based on signal strength thresholds. When signal strength is sufficient, multiple low bands are aggregated for enhanced spectral efficiency. When signal strength falls below the threshold, the system transitions to using high bands or single low band to maintain adequate signal quality, thereby resolving the contradiction between spectral efficiency and signal strength loss.
Solution Approach 2:
The patent implements dynamic band switching between different frequency configurations. The system continuously monitors signal strength and dynamically reconfigures the active bands based on real-time conditions. This dynamic adaptation allows the system to maximize spectral efficiency when possible while maintaining signal strength when necessary, resolving the trade-off between productivity and energy loss.
2Reliability
If UE hardware is designed for optimized performance on specific bands, then signal strength is maintained, but adaptability to use multiple low bands simultaneously is reduced
Solution Approach 1:
The system enables the UE to perform multiple functions by supporting both optimized single-band operation and unoptimized multi-band aggregation. Through intelligent band switching, the same hardware can reliably operate on its optimized bands for high signal strength while also being capable of aggregating multiple low bands when needed, thus achieving universality without sacrificing reliability.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a threshold-based decision framework that mediates between the UE's hardware capabilities and network requirements. This intermediary layer allows the system to leverage the UE's inherent hardware optimizations while still enabling multi-band operation through controlled, threshold-based activation, thus maintaining reliability while improving adaptability.
3Productivity
If the cellular network aggressively assigns multiple low bands to UEs, then network capacity is increased, but communication reliability decreases due to unoptimized signal loss
Solution Approach 1:
The system implements a feedback mechanism where the UE reports its measured signal strength to the network, and the network uses this feedback to make informed band assignment decisions. The network compares the reported signal strength against predefined thresholds and only assigns multiple low bands when the feedback indicates sufficient signal quality, thereby maintaining communication reliability while still increasing network capacity through aggressive band aggregation when conditions permit.
Data Source
AI summary
Various arrangements are presented for performing cellular communication using a frequency band for which a piece of user equipment (UE) is not optimized. The cellular network can be transmitted messages from the UE that indicate the unoptimized frequency band and an associated signal loss value for the band. The cellular network can then determine whether to use the unoptimized frequency band for communication based on measured signal strength and the reported signal loss value. Upon deciding to use the frequency band, the network can assign it for use to the UE via a message and proceed to communicate with the UE using that frequency band.