FBE COT Sharing via Network-Mediated FFP Parameter Exchange

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Solution Overview

Problem

Existing methods for sharing channel occupancy time (COT) in frame-based equipment (FBE) face challenges such as FFP parameter confusion and inability to reclaim the channel, leading to inefficiencies in channel access.

Innovation Solution

A method where a first terminal device sends indication information about the fixed frame period (FFP) where its currently enabled COT is located to a network device, which then shares this information with other terminal devices, allowing them to occupy the COT based on the provided parameter information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If terminal devices share COT autonomously without network device coordination, then channel access efficiency improves, but FFP parameter confusion occurs leading to channel reclamation failures

Engineering Contradiction:

Improvechannel access efficiencyVSAvoidchannel reclamation reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The network device serves as an intermediary that receives FFP parameter information from the first terminal device and forwards it to the second terminal device. This mediation resolves the FFP parameter confusion that occurs in autonomous COT sharing, as the network device coordinates the information exchange and ensures accurate parameter transmission between terminal devices, thereby maintaining channel reclamation reliability while preserving channel access efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If terminal devices use autonomous COT sharing, then channel utilization improves, but information accuracy about FFP parameters deteriorates

Engineering Contradiction:

Improvechannel utilizationVSAvoidFFP parameter accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The network device receives FFP parameter information from the first terminal device and provides feedback by forwarding this information to the second terminal device. This feedback mechanism ensures that the second terminal device obtains accurate FFP parameter information, resolving the information accuracy deterioration that occurs in autonomous COT sharing while maintaining improved channel utilization.

Inventive Principle:

Principle #23Feedback

3Speed

If direct COT sharing between terminal devices is implemented, then communication speed improves, but system complexity increases due to parameter coordination issues

Engineering Contradiction:

Improvecommunication speedVSAvoidparameter coordination complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The network device acts as an intermediary that simplifies the parameter coordination process. Instead of terminal devices directly coordinating FFP parameters with each other (which increases complexity), the network device receives and forwards the parameter information, thereby reducing the coordination complexity while maintaining the communication speed benefits of direct COT sharing.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250071564A1Methods and apparatuses thereof for sharing a channel occupancy time (COT) of a frame based equipment (FBE)

Publication Date: 2025.02.27 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

Embodiments of the present application provide methods and apparatuses for sharing a channel occupancy time (COT) of a frame-based equipment (FBE). One of the methods includes sending, to a network device, indication information of a fixed frame period (FFP) during which a currently enabled COT is located, wherein the indication information at least comprises parameter information of the FFP.