Sidelink Transmission Configuration Selection Across Multiple Start Positions
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission configurations for sidelink communications, particularly in scenarios involving multiple UEs communicating directly without network node intermediaries, which can lead to interference and resource allocation inefficiencies.
Innovation Solution
A method and apparatus for a UE to receive and transmit using a subset of transmission configurations for a sidelink resource pool with multiple starting positions, allowing for optimized resource allocation and reduced interference in device-to-device communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple transmission configurations are provided for sidelink resource pool with multiple starting positions, then transmission flexibility and resource utilization are improved, but system complexity and interference management difficulty increase
Solution Approach 1:
The patent segments the transmission configurations into a first set associated with first starting positions and a second set associated with second starting positions. This segmentation allows the system to manage multiple transmission configurations by dividing them into distinct groups, each tied to specific starting positions, thereby reducing the complexity of tracking and managing all configurations simultaneously while maintaining transmission flexibility.
Solution Approach 2:
The patent introduces a intermediary mechanism where a first UE transmits first sidelink control information indicating which transmission configurations from the first set to use, and a second UE transmits second sidelink control information indicating which configurations from the second set to use. This intermediary layer of control information enables the system to manage complexity by having UEs explicitly indicate their configuration selections rather than requiring the system to manage all possibilities centrally.
2Productivity
If multiple transmission configurations are provided for sidelink resource pool, then resource allocation efficiency is improved, but interference between transmissions increases
Solution Approach 1:
The patent segments transmission configurations into first and second sets, each associated with distinct starting positions. By dividing the configuration space this way, the system can allocate resources more efficiently within each segment while limiting interference between segments, as transmissions in different segments operate at different starting positions and can be better coordinated.
Solution Approach 2:
The patent implements feedback mechanisms where UEs transmit control information indicating their selected transmission configurations. The receiving UE uses this feedback information to properly decode the transmissions and adjust its reception parameters. This feedback loop enables efficient resource allocation by ensuring both UEs are synchronized on the selected configurations while allowing the system to manage interference through coordinated selection based on feedback.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying a subset of transmission configurations of a set of possible transmission configurations for a sidelink resource pool with a plurality of transmission starting positions. The UE may transmit, in a transmission starting position of the plurality of transmission starting positions and on a sidelink, using a transmission configuration of the subset of transmission configurations. Numerous other aspects are described.