Optical Transceiver Activation for Energy-Efficient Wireless Handover

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Solution Overview

Problem

Optical wireless communication systems face high energy consumption without compromising Quality of Service (QoS) due to the need for multiple access points to maintain seamless connections as user equipment moves within a room, often obstructing direct light paths.

Innovation Solution

An optical wireless communication module with a plurality of optical transceivers, each directed differently, controlled by a controller to activate or deactivate based on user equipment movement, using threshold SNR values for handover to optimize energy use and maintain QoS.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple access points are installed to maintain seamless connection as user equipment moves, then communication reliability is improved, but energy consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The optical transceiver is divided into multiple independent transceiver segments, each capable of operating independently. The controller activates only the segments needed for current communication based on user equipment position, while deactivating others. This segmentation allows the system to maintain communication reliability through multiple segments while reducing energy consumption by not activating all segments simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically activates and deactivates transceiver segments based on real-time detection of user equipment movement and position. The controller adjusts the operational state of segments according to current communication needs, transitioning between active and inactive states to optimize the balance between maintaining seamless connection and reducing energy consumption.

Inventive Principle:

Principle #15Dynamics

2Reliability

If all optical transceivers are activated to ensure coverage, then quality of service is improved, but energy consumption increases

Engineering Contradiction:

Improvequality of serviceVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

Different transceiver segments are activated based on their spatial coverage requirements and current communication needs. The controller determines which segments should be active by considering the position and movement trajectory of user equipment, activating only those segments that provide necessary coverage for maintaining quality of service, while leaving other segments inactive to reduce overall energy consumption.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system uses self-service mechanisms where the controller automatically determines optimal transceiver activation based on detected user equipment movement patterns and communication requirements. The system monitors SNR values and handover conditions to autonomously manage transceiver states, eliminating the need for manual intervention while optimizing energy efficiency.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12562815B2Energy efficient optical wireless communication module

Publication Date: 2026.02.24 SIGNIFY HOLDING BV

AI summary

An optical wireless communication module comprising a plurality of optical transceivers and a controller, wherein the controller is configured to determine the optical transceivers to be used based on movement information of a UE, to activate the optical transceivers to be used and to deactivate other optical transceivers, such that it consumes less energy without compromising Quality of Service.