Reconfigurable Intelligent Surface Phase Tuning Without Channel Estimation

The patent extracts and eliminates the base station from the phase optimization process. Instead of requiring the base station to perform channel estimation and calculate optimal phase combinations (which increases hardware and computational demands), the method enables user equipment to directly measure signal strength and determine optimal phase combinations locally, removing the need for complex base station processing while maintaining signal quality improvement

The patent implements self-service by enabling user equipment to autonomously perform phase combination optimization without base station intervention. The user equipment measures signal strength directly, determines the optimal phase combination locally, and feeds back only the result to the base station, allowing the system to self-optimize without requiring complex base station hardware or processing capabilities

The patent removes the computationally intensive channel estimation and phase optimization calculations from the base station. By enabling user equipment to perform these measurements and calculations locally using simple signal strength measurement, the method extracts the computational burden from the base station while achieving the same signal quality improvement through much simpler local processing

The patent employs a simple, low-cost measurement approach where user equipment performs straightforward signal strength measurements rather than complex channel estimations. This disposable-like simple measurement method replaces expensive, complex computational processes at the base station, achieving optimization through inexpensive local measurements that don't require sophisticated algorithms or repeated complex calculations

The patent extracts the communication overhead by removing the need for extensive uplink feedback transmissions to the base station. Instead of requiring user equipment to send detailed channel state information or multiple measurement reports, the method only requires a single feedback transmission of the optimal phase combination index, dramatically reducing communication cost while maintaining signal quality improvement

The patent applies partial action by having user equipment perform only the essential signal strength measurement and phase combination determination without requiring full channel estimation or multiple iterative measurements. This partial measurement approach achieves sufficient optimization results with minimal communication overhead, avoiding excessive communication actions that would increase energy consumption