FBE COT Sharing Signaling for UE Power-Aware Operation

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Solution Overview

Problem

In frame-based equipment (FBE) mode, wireless communication systems face inefficiencies due to UEs wasting power and resources by not being able to sleep during channel occupancy times (COT) when COT sharing is not applicable, leading to unnecessary monitoring and communication.

Innovation Solution

A method and apparatus for signaling in FBE mode that allows UEs to determine COT sharing or non-COT sharing based on received designations, enabling them to sleep, monitor, or communicate accordingly, thereby optimizing power usage and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If UEs continuously monitor and communicate during COT in FBE mode, then communication reliability is maintained, but power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic behavior adjustment by enabling UEs to switch between monitoring/communication states and sleep states based on received COT sharing designations. This dynamic state transition allows the system to adapt power consumption levels according to actual communication needs while maintaining reliability when COT sharing is applicable.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent enables UEs to autonomously determine their operational state (monitoring, communication, or sleep) based on received signaling information about COT sharing applicability. This self-service mechanism allows UEs to automatically optimize their power consumption without continuous network control, reducing unnecessary power usage while maintaining communication reliability.

Inventive Principle:

Principle #25Self-service

2Loss of energy

If UEs sleep during COT when COT sharing is not applicable, then power efficiency improves, but communication responsiveness may deteriorate

Engineering Contradiction:

Improvepower efficiencyVSAvoidcommunication responsiveness

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where UEs receive explicit signaling information about COT sharing applicability from the network. This feedback enables UEs to make informed decisions about entering sleep mode, ensuring they only sleep when COT sharing is not applicable, thus maintaining communication responsiveness while improving power efficiency.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent applies preliminary action by having the network pre-indicate COT sharing applicability through signaling before the UE needs to make operational decisions. This advance information allows UEs to properly configure their monitoring and communication behavior in advance, ensuring responsiveness is maintained when needed while enabling sleep mode when appropriate.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12376153B2Signaling for channel occupancy time sharing in frame based equipment mode

Publication Date: 2025.07.29 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to signaling in frame-based equipment (FBE) mode for channel occupancy time (COT) sharing. In some aspects, a user equipment (UE) may receive, in association with an FBE mode, a message associated with a designation of the UE for either COT sharing or non-COT sharing. The UE may detect whether there is an initial signal at a boundary of a time frame for COT and sleep, monitor, or communicate during the time frame, based at least in part on the designation and the detecting. Numerous other aspects are provided.