Group-Based Resource Allocation with Cross-Cell S-UE Coordination
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Solution Overview
Problem
The existing 5G NR technology faces challenges in determining scheduling UEs for group-based resource allocation, leading to unnecessary signaling overhead, duplicate resource scheduling, and high power consumption due to frequent S-UE changes in cross-cell scenarios, especially in fast-moving groups like platooning.
Innovation Solution
Implementing a new resource scheduling procedure with S-UE qualification criteria, assistance information reporting, and inter-gNB coordination to ensure efficient and coordinated resource allocation across cells, reducing duplicate scheduling and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequent S-UE changes are allowed in cross-cell scenarios, then adaptability to mobile groups is improved, but power consumption increases and reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by establishing S-UE qualification criteria before resource allocation occurs. Member UEs are pre-evaluated against defined criteria (such as signal strength thresholds, UE capability requirements, and historical performance metrics) to determine eligibility for S-UE status. This pre-screening mechanism prevents unnecessary S-UE changes by filtering out unsuitable candidates beforehand, thereby reducing frequent reconfigurations and associated power consumption while maintaining adaptability.
2Ease of operation
If S-UE selection is performed without coordination between cells, then ease of operation is improved, but duplicate resource scheduling occurs and reliability deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where BSs exchange S-UE selection information and resource allocation status between adjacent cells. When a BS selects an S-UE for resource allocation, it notifies neighboring BSs through feedback signaling. This feedback loop prevents duplicate scheduling by allowing adjacent cells to awareness of ongoing allocations, thereby maintaining reliability without significantly complicating the operation procedure.
3Reliability
If comprehensive S-UE qualification criteria are implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the S-UE qualification criteria into multiple independent evaluation dimensions. Instead of a single complex assessment, the system segments qualification into distinct criteria such as signal strength thresholds, UE capability requirements, historical performance metrics, and resource availability status. Each criterion can be evaluated independently and weighted according to priority, making the overall qualification process more manageable and less complex while maintaining high reliability through comprehensive assessment.
Data Source
AI summary
The subject application relates to method and apparatus of group-based resource allocation. A method performed by a first Base station (BS), comprises: transmitting a scheduling user equipment (S-UE) qualification criterion to a group of UEs; receiving at least one request for being a first S-UE from at least one member UE (M-UE) in the group that satisfies the S-UE qualification criterion; transmitting a signal indicating the first S-UE based on the at least one request; and transmitting, to the first S-UE, group-based resource information for the group of UEs.