Sidelink Control Signaling for No-Data Feedback Transmission

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face inefficiencies in managing sidelink control information transmission when no sidelink data is available, leading to unnecessary processing and resource utilization.

Innovation Solution

Transmitting sidelink control information indicating no sidelink data to trigger a feedback response, which includes generating and transmitting control information without actual data to conserve resources and reduce processing load.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If sidelink control information is transmitted with data, then data communication is established, but unnecessary processing and resource utilization occurs when no data is available

Engineering Contradiction:

Improvenetwork efficiencyVSAvoidresource utilization

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent extracts the control information transmission function from the data transmission process. By separating these functions, the system can transmit control information independently without requiring actual data to be present, thereby eliminating unnecessary processing and resource utilization when no data is available for transmission.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements a feedback mechanism where the receiving device sends back an acknowledgment after receiving the control information. This feedback loop allows the transmitting device to confirm successful delivery of control information without requiring data transmission, optimizing resource utilization while maintaining communication efficiency.

Inventive Principle:

Principle #23Feedback

2Reliability

If traditional data transmission methods are used, then communication is maintained, but processing load increases unnecessarily when no data is available

Engineering Contradiction:

Improvecommunication maintenanceVSAvoidprocessing load

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the control signal transmission from the data transmission pathway, allowing the system to maintain communication reliability through control information alone without subjecting the receiving device to unnecessary data processing operations.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of transmitting data and then handling control information, the patent inverts the approach by transmitting control information first to establish communication intent, then only transmitting data if actually available. This inversion reduces processing load while maintaining communication reliability.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS12556317B2Methods and apparatus for transmitting sidelink control information indicating no sidelink data

Publication Date: 2026.02.17 LENOVO (SINGAPORE) PTE LTD

AI summary

Apparatuses, methods, and systems are disclosed for transmitting sidelink control information indicating no sidelink data. One method includes determining, at a user equipment, that there is no sidelink data available for a destination. The method includes transmitting sidelink control information to the destination that indicates that there is no sidelink data available for the destination and triggers a feedback response from the destination. The method includes receiving the feedback response from the destination.