Sidelink Resource Skipping for Reusable Transmission Occasions
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Solution Overview
Problem
Wireless communication systems face inefficiencies due to unutilized sidelink resources allocated for initial and retransmission occasions, leading to resource waste.
Innovation Solution
User Equipment (UE) signals an indication to other UEs about unused initial or retransmission occasions, allowing these resources to be utilized by others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sidelink resources are allocated for initial and retransmission occasions, then transmission reliability is improved, but resource utilization deteriorates due to unutilized transmission occasions
Solution Approach 1:
The transmitting UE autonomously determines whether to skip transmission occasions based on its own data availability status and sends skip indications to other UEs without network intervention. This self-service mechanism allows the system to dynamically optimize resource usage while maintaining reliability guarantees, as UEs independently manage their transmission resources based on actual needs
Solution Approach 2:
The patent implements a feedback mechanism where transmitting UEs send skip indications to other UEs about their unused transmission occasions. This feedback loop enables receiving UEs to adapt their resource usage dynamically, filling in gaps left by transmitting UEs that have fewer data packets to send, thereby improving overall resource utilization while maintaining transmission reliability
2Area of stationary object
If transmission occasions are allocated for all UEs, then communication coverage is improved, but resource waste increases due to UEs with fewer data packets
Solution Approach 1:
The patent introduces dynamic resource allocation where transmission occasions are not statically assigned but dynamically adjusted based on real-time data availability. UEs can skip transmission occasions when they have fewer data packets and other UEs can utilize these skipped occasions, creating a dynamic system that adapts to varying traffic conditions and minimizes resource waste while maintaining coverage
Solution Approach 2:
The patent makes transmission occasions universal by allowing any UE to utilize skipped occasions from other UEs. A transmission occasion originally allocated to one UE can be repurposed and used by another UE that has data to transmit, creating a multi-functional resource allocation system that maximizes utilization across the network while maintaining coverage area
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for method for wireless communications by a first user equipment (UE), generally including receiving sidelink configuration information configuring the first UE with at least initial transmission occasions for initial sidelink transmissions using shared sidelink resources and transmitting an indication, to at least a second UE that uses the shared sidelink resources, that the first UE intends to skip at least one of the initial transmission occasions or one or more retransmission occasions scheduled for retransmission of an initial transmission.