UE Decisions for Scheduled Communications After Bandwidth Part Changes
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing scheduled communications after a change in bandwidth part (BWP), particularly in next-generation networks like 5G, where semi-statically configured communications are impacted by BWP changes, leading to potential disruptions or inefficiencies.
Innovation Solution
User equipment (UE) receives indications of BWP changes and determines whether to continue or abort scheduled communications based on the impact of the change, allowing for adaptive management of semi-statically configured communications such as SPS-PDSCH, CSI-RS, CG-PUSCH, SRS, and other types of configured downlink or uplink communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semi-statically configured communications are maintained after BWP change, then communication continuity is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements dynamic decision-making for scheduled communications after BWP changes. The UE evaluates whether to continue or abort each scheduled communication based on real-time conditions, transforming the static semi-static scheduling approach into a dynamic adaptive system that balances reliability and resource efficiency
Solution Approach 2:
The patent changes the operational parameters of scheduled communications based on BWP change conditions. By modifying communication continuation decisions based on parameter comparisons (original BWP vs. new BWP, resource availability, timing), the system optimizes both communication reliability and resource allocation efficiency
2Productivity
If scheduled communications are aborted after BWP change, then resource allocation efficiency is improved, but communication reliability deteriorates
Solution Approach 1:
The patent applies different quality decisions to different scheduled communications individually. Each communication is evaluated separately based on its specific parameters and the BWP change impact, allowing some communications to continue while others are aborted, rather than applying a uniform approach to all scheduled communications
3Reliability
If UE continues all scheduled communications after BWP change, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the decision-making process into distinct evaluation steps for each scheduled communication. The UE separately assesses each communication's continuation viability based on BWP change impact, creating a structured modular approach that manages complexity while maintaining reliability
4Productivity
If UE aborts all scheduled communications after BWP change, then resource allocation efficiency is improved, but device complexity decreases
Solution Approach 1:
The patent extracts the decision-making logic from the BWP change event itself, creating an independent evaluation mechanism. Rather than having the BWP change directly dictate communication fate, the system extracts and applies separate continuation/abortion decisions based on evaluated impact, simplifying the overall management complexity
Data Source
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AI summary
Aspects relate to determining whether to conduct a scheduled communication after a bandwidth part (BWP) for the scheduled communication has been changed. In some examples, a user equipment (UE) receives a first indication from a base station (BS) that schedules a communication associated with a first BWP. Subsequently, upon receiving a second indication (e.g., a DCI or a slot format indicator (SFI)) from the BS indicative of a change in the first BWP, the UE determines whether to conduct the scheduled communication. For example, the second DCI may indicate a change in a second BWP that imparts a change on the first BWP or the second DCI may explicitly indicate a change in the first BWP. As another example, an SFI may indicate that at least one symbol for the first BWP has been changed from uplink to downlink, or vice versa.