Sidelink Destination Selection Using Logical Channel Priority
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing sidelink transmissions between wireless transmit/receive units (WTRUs), particularly in selecting optimal destinations and resource allocation to ensure quality of service (QoS) and minimize resource utilization.
Innovation Solution
The system describes methods for a WTRU to select a destination for sidelink transmission based on transmission parameters and priorities, multiplexing logical channels, and optimizing resource allocation to meet QoS requirements. This involves identifying logical channels with available data and prioritizing them based on priority and bucket size parameters, as well as dynamically adjusting resource selection based on channel conditions and congestion levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a WTRU transmits data on multiple logical channels to multiple destinations, then the quantity of data transmitted increases, but resource utilization efficiency decreases
Solution Approach 1:
The patent segments data transmission by prioritizing logical channels and dividing destinations into priority groups. The WTRU segments available resources among multiple destinations based on logical channel priorities, transmitting data from highest priority logical channels first to selected destinations, thereby efficiently managing multiple transmissions without wasting resources on lower priority data.
2Reliability
If a WTRU selects destinations based on multiple criteria (priority, bucket size, communication range), then QoS requirements are met, but the complexity of destination selection increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring priority values for logical channels and bucket size parameters before transmission occurs. The WTRU uses these pre-established priorities to automatically select destinations without complex real-time decision-making, reducing computational complexity while ensuring QoS requirements are met through predetermined priority-based selection.
3Reliability
If a WTRU prioritizes transmissions from logical channels with highest priority, then QoS for critical data is improved, but resource allocation for lower priority data becomes inefficient
Solution Approach 1:
The patent applies partial action by selectively transmitting data from logical channels based on priority thresholds. The WTRU transmits data from highest priority logical channels to selected destinations using available resources, and only considers lower priority logical channels if resources remain after satisfying higher priority transmissions. This ensures critical data receives guaranteed resources while lower priority data utilizes remaining resources efficiently.
Data Source
AI summary
Systems, methods, and instrumentalities are described herein that may be used to determine a destination for sidelink transmission based on the priority of the transmission and/or other parameters associated with the transmission. In examples, a destination may be selected if one or more logical channels associated with the destination have a bucket size parameter exceeding a certain threshold and the one or more logical channels have a highest priority. Various other techniques are also described herein that relate to the configuration and/or report of QoS information, selection of sidelink resources, use of a minimum communication range, etc.