Early Sidelink Sensing Resource Selection

Solution Overview

Problem

Current wireless communication systems face challenges in efficiently managing sidelink communications, particularly in scenarios where urgent data transmissions need to occur before the next sensing results sharing opportunity within a collaborative sensing schedule, leading to potential packet drops due to delayed resource selection.

Innovation Solution

A method where user equipment (UE) identifies the need for sidelink communication before the next sensing results sharing opportunity and selects resources based on previous sensing results, allowing for early sharing of sensing data to ensure timely transmission, thereby reducing the risk of packet drops.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE waits for the next sensing results sharing opportunity to select resources, then the collaborative sensing schedule is maintained, but the sidelink communication is delayed causing packet drops

Engineering Contradiction:

Improvepacket delivery reliabilityVSAvoidresource selection delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The UE performs resource selection in advance based on previously received sensing results before the next sensing results sharing opportunity occurs. This preliminary action allows the UE to prepare resource selections proactively, so that when urgent sidelink communications need to be transmitted, resources are already selected and ready, eliminating the delay that would otherwise cause packet drops while maintaining compliance with the collaborative sensing schedule

Inventive Principle:

Principle #10Preliminary action

2Speed

If the UE performs resource selection based on previous sensing results, then timely transmission is enabled, but the sensing results may be outdated

Engineering Contradiction:

Improvetransmission speedVSAvoidsensing result accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The UE performs resource selection in advance based on previously received sensing results before the next sensing results sharing opportunity occurs. This preliminary action allows the UE to prepare resource selections proactively, so that when urgent sidelink communications need to be transmitted, resources are already selected and ready, eliminating the delay that would otherwise cause packet drops while maintaining compliance with the collaborative sensing schedule

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system buffers or stores previously received sensing results for later use when urgent transmissions are needed. This cushioning approach allows the UE to fall back on stored sensing information rather than waiting for potentially outdated new sensing results, providing a buffer that maintains both timeliness and reasonable accuracy for resource selection

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11825517B2Early sharing for collaborative sensing in sidelink

Publication Date: 2023.11.21 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify that a sidelink communication is to be transmitted by the UE prior to a next sensing results sharing opportunity associated with a collaborative sensing schedule that is associated with resource selection for sidelink communications for a group of UEs that includes the UE. The UE may select resources for the sidelink communication. The UE may transmit the sidelink communication using the resources. Numerous other aspects are described.