Reconfigurable Reflective Surface Phase Parameter Multiplexing
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Solution Overview
Problem
Existing techniques for communication via reconfigurable reflective surfaces are deficient in effectively extending wireless coverage and efficiently communicating feedback to base stations, particularly in scenarios with blockages or signal interference.
Innovation Solution
A method and apparatus that utilize a reconfigurable reflective surface to monitor control messages from a base station, identify and apply sets of phase parameters to multiplex feedback signals, allowing the surface to reflect communications between user equipment and the base station, thereby enhancing communication efficiency and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a reconfigurable reflective surface is used to extend wireless coverage, then coverage area is improved, but feedback communication efficiency deteriorates
Solution Approach 1:
The reflective surface dynamically switches between different phase parameter sets (first set and second set) to encode feedback information. By changing the phase parameters over time in response to control messages, the system enables the passive reflective surface to communicate feedback to the base station without requiring active transmission components, thus extending coverage while maintaining feedback efficiency.
2Reliability
If phase parameters are applied to multiplex feedback on reflected signals, then feedback communication reliability is improved, but signal processing complexity increases
Solution Approach 1:
The system uses discrete phase parameter sets (first set and second set) that can be switched between based on feedback requirements. By changing the phase parameters of the reflective surface elements, the system multiplexes feedback information onto the reflected signals. This approach improves reliability through phase-based encoding while keeping processing complexity manageable through the use of predefined phase parameter sets rather than continuous complex processing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves communication reliability and efficiency by enabling the reconfigurable reflective surface to effectively extend wireless coverage around blockages with minimal power consumption, using phase parameters to optimize signal reflection and feedback communication.
Implementation Method 1
a reconfigurable reflective surface may identify a first and a second set of phase parameters which may be used to reflect communications between a UE and the base station
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A reconfigurable reflective surface may exploit signals transmitted from a user equipment (UE) to communicate feedback to a base station. For example, the surface may communicate feedback by reflecting two or more reference signals according to two or more configurations. In some cases, the two or more configurations may be phase shifted relative each other. In another example, the surface may communicate feedback by altering the intensity of or more reference signals transmitted from the UE. In yet another example, the surface may communicate feedback to the base station by reflecting reference signals towards one or more antenna arrays. In some cases, the one or more antenna arrays may be located at a single base station. In some other cases, the one or more antenna arrays may be located at multiple base stations or multiple transmission/reception points.