Intra-UE Multiplexing for 5G Grant Resource Conflicts
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Solution Overview
Problem
Existing 5G wireless communication networks face challenges in efficiently handling resource conflicts between higher priority traffic (e.g., Ultra-Reliable and Low Latency Communication (URLLC)) and lower priority traffic (e.g., enhanced Mobile Broadband (eMBB)) due to overlapping dynamic and configured grant resources, leading to inefficient handling of lower priority data transmissions.
Innovation Solution
Implementing intra-UE prioritization and multiplexing mechanisms that prioritize higher priority data while optimizing the handling of lower priority data transmissions by adjusting modulation level, transmission power, or recoding data to ensure complete transmission on remaining resources after conflicts, using predefined or dynamically signaled rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic grant resources and configured grant resources overlap for higher priority traffic, then higher priority data transmission reliability is improved, but lower priority data transmission efficiency deteriorates
Solution Approach 1:
The patent segments the transmission resource handling into separate processes for higher priority and lower priority traffic. When a conflict is detected, the system separates the handling by interrupting lower priority transmission to complete higher priority transmission first, then resuming lower priority transmission on remaining resources. This segmentation resolves the contradiction by ensuring higher priority reliability while maintaining lower priority throughput through structured resource division.
Solution Approach 2:
The patent implements preliminary detection of resource conflicts between dynamic and configured grants before transmission begins. By detecting overlapping resources in advance and establishing interrupt/resume mechanisms beforehand, the system prepares the lower priority transmission to be temporarily suspended and later resumed. This preliminary action prevents complete loss of lower priority data while ensuring higher priority traffic gets necessary resources.
2Adaptability or versatility
If configured grant resources overlap with dynamic grant resources, then resource allocation flexibility is improved, but transmission scheduling complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the UE autonomously detects resource conflicts between configured and dynamic grants, determines priority relationships, and executes interrupt/resume operations without continuous network intervention. The system uses predefined RLC entity identifiers and automatic detection of overlapping resources to handle scheduling decisions locally. This self-service approach maintains resource allocation flexibility while reducing scheduling complexity by distributing the decision-making burden to the UE.
3Reliability
If lower priority data transmission is interrupted for higher priority traffic, then higher priority traffic reliability is improved, but lower priority data loss increases
Solution Approach 1:
The patent implements beforehand cushioning by establishing interrupt and resume mechanisms that protect lower priority data from complete loss. When higher priority traffic needs resources, the lower priority transmission is temporarily interrupted rather than abandoned. The system cushions against data loss by preserving the lower priority data in buffers and enabling resumption on remaining or alternative resources, ensuring that higher priority reliability gains do not come at the cost of total lower priority data loss.
Solution Approach 2:
The patent applies discarding and recovering by selectively interrupting lower priority transmission segments that conflict with higher priority traffic, while recovering and preserving the non-conflicting portions for later transmission. The RLC entity identifies which data segments can be safely interrupted and which should be preserved, allowing the system to discard only the necessary conflicting portions temporarily while recovering complete data integrity through resume operations on remaining resources.
Data Source
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AI summary
Methods, devices and non-transitory computer readable storage mediums provide mechanisms for handling uplink lower priority data transmissions, which are impacted by uplink higher priority data transmissions as a result of, for example, when dynamic grant resources and configured grant resources overlap, or configured grant resources overlap with configured grant resources, or dynamic grant resources overlap with dynamic grant resources.