Sidelink Resource Allocation via Request Feedback
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in efficiently managing sidelink resource allocations between user equipment (UEs) without clear definitions for request and scheduling information on the sidelink interface, leading to suboptimal resource utilization and processing inefficiencies.
Innovation Solution
The method involves a UE transmitting a request for sidelink resource allocation and receiving scheduling information, which may include parameters like priority levels, packet delay budgets, and retransmission details, to improve sidelink scheduling and resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE autonomously performs sidelink resource allocation without clear request and scheduling definitions, then device autonomy and flexibility are improved, but resource utilization efficiency and processing efficiency deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the scheduling UE receives buffer status reports from monitored UEs and responds with scheduling assignments. This closed-loop feedback system enables the scheduling UE to make informed resource allocation decisions based on actual buffer conditions, improving resource utilization while maintaining device autonomy through defined request-response protocols.
Solution Approach 2:
The patent introduces a scheduling UE as an intermediary between monitored UEs and the sidelink resources. The scheduling UE receives buffer status requests, processes scheduling information, and provides resource allocations to monitored UEs. This intermediary role resolves the contradiction by providing structured coordination that improves resource efficiency while preserving the autonomous operation of individual UEs through clearly defined interfaces.
2Productivity
If detailed scheduling information is exchanged between UEs, then resource allocation efficiency is improved, but processing overhead and complexity increase
Solution Approach 1:
The patent segments the scheduling information exchange into distinct components: buffer status reports containing transmission buffer information, and scheduling assignments containing resource allocation details. This segmentation allows UEs to process only relevant information segments rather than handling complete scheduling messages, reducing processing overhead while maintaining scheduling efficiency through structured information exchange.
3Measurement precision
If UE monitors buffer status of other UEs, then resource allocation accuracy is improved, but processing resources and complexity increase
Solution Approach 1:
The patent implements partial monitoring where the scheduling UE monitors buffer status of specific monitored UEs rather than all UEs in the system. This partial action approach provides sufficient accuracy for resource allocation by focusing monitoring efforts on relevant UEs, while conserving processing resources by avoiding comprehensive monitoring of all potential participants in the sidelink communication.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE, a request for a sidelink resource allocation. The first UE may receive, from the second UE, scheduling information identifying the sidelink resource allocation based at least in part on the request. Numerous other aspects are provided.