Reconfigurable Reflective Surface Beam Selection

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Solution Overview

Problem

Existing techniques for configuring reconfigurable reflective surfaces in wireless communications are deficient, particularly in actively participating in beam selection, leading to inefficiencies in extending wireless coverage and managing wireless channels.

Innovation Solution

A method and apparatus that enable a reconfigurable reflective surface to autonomously determine and configure its reflective elements based on measurement information from wireless channels, allowing it to select optimal beams and weights for communication between wireless devices, and inform other nodes of these configurations, thereby improving beam selection and channel management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the reconfigurable reflective surface autonomously determines beam selection and weights, then beam selection efficiency and coverage are improved, but device complexity increases

Engineering Contradiction:

Improvebeam selection efficiencyVSAvoidreflective surface configuration complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The reconfigurable reflective surface autonomously performs beam selection and weight determination by processing measurement information from wireless channels, eliminating the need for external controller intervention in these functions

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system performs preliminary channel measurements and beam evaluations before actual communication, allowing the reflective surface to pre-determine optimal beam configurations and weights based on measured channel conditions

Inventive Principle:

Principle #10Preliminary action

2Loss of information

If the reflective surface independently determines optimal configurations, then data transmission requirements are reduced, but measurement and detection difficulty increases

Engineering Contradiction:

Improvedata transmission reductionVSAvoidchannel measurement complexity

Core Design Contradiction:

Loss of informationVSDifficulty of detecting and measuring

Solution Approach 1:

The system uses measurement information as an intermediary between the wireless channel and the beam selection process, allowing the reflective surface to make informed decisions without requiring extensive direct data transmission

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces extensive data transmission mechanisms with measurement-based decision making, where the reflective surface uses channel measurements to directly determine beam configurations without requiring continuous data exchange

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Area of stationary object

If the reconfigurable reflective surface actively participates in beam selection, then wireless coverage is extended, but power consumption increases

Engineering Contradiction:

Improvewireless coverage areaVSAvoidreflective surface power consumption

Core Design Contradiction:

Area of stationary objectVSUse of energy by stationary object

Solution Approach 1:

The reflective surface performs measurements and beam selection only when needed for coverage extension, rather than continuously operating, reducing overall power consumption while maintaining coverage benefits

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250007564A1Active participation of reflective surface in beam selection

Publication Date: 2025.01.02 QUALCOMM INC

AI summary

Methods, systems, and devices for wireless communications are described. A example method for wireless communication at a reconfigurable reflective surface comprises receiving one or more signals from a first wireless device and determining, based at least in part on the one or more signals, measurement information pertaining to a wireless channel between the reconfigurable reflective surface and the first wireless device. The example method may further include determining, based at least in part on the measurement information, a set of weights for a plurality of reflective elements of the reconfigurable reflective surface to be used in reflecting communications between the first wireless device and a second wireless device.