Aperiodic SRS Transmission Collision Handling
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Solution Overview
Problem
Current aperiodic sounding reference signal (SRS) transmission mechanisms in wireless communications face challenges such as overlapping and early triggering of SRS resource sets, which can lead to collisions and inefficient resource utilization.
Innovation Solution
The proposed solution involves a processor in a user equipment (UE) configured to receive messages for triggering aperiodic SRS transmission, where the messages indicate SRS resource sets that are non-overlapping or configured with timing offsets meeting specific thresholds, allowing for flexible configuration and avoidance of collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SRS resource sets are configured with overlapping resources, then resource utilization flexibility is improved, but resource collisions occur leading to transmission conflicts
Solution Approach 1:
The patent changes the timing parameters of SRS resource sets by configuring different timing offsets (K1 values) for different resource sets. This parameter adjustment allows overlapping resource sets to be transmitted at different times, resolving collisions while maintaining configuration flexibility. The network device can dynamically adjust timing offsets to avoid conflicts between overlapping SRS resources.
2Speed
If SRS resource sets are triggered with small timing offsets, then transmission responsiveness is improved, but early triggering conflicts occur when multiple resource sets overlap
Solution Approach 1:
The patent applies preliminary action by pre-configuring timing offset thresholds and collision detection mechanisms before SRS transmission occurs. The UE checks whether triggering messages satisfy the timing offset threshold condition before executing transmission, and pre-identifies potential collisions between multiple resource sets. This preliminary verification prevents harmful early triggering conflicts while maintaining fast response capability.
3Productivity
If the UE processes multiple overlapping SRS resource sets simultaneously, then resource management efficiency is improved, but processing complexity and collision resolution difficulty increase
Solution Approach 1:
The patent segments the SRS resource set processing by introducing priority levels and separate handling procedures for different resource sets. When collisions are detected, the UE prioritizes processing based on pre-configured priorities, handling high-priority resource sets first and deferring or dropping lower-priority ones. This segmentation simplifies the collision resolution process while maintaining efficient resource management.
Data Source
AI summary
Embodiments of the present disclosure relate to aperiodic sounding reference signal (SRS) transmission. According to embodiments of the present disclosure, the collision of the triggered SRS resource sets (such as, the SRS resource set being triggered too early or the triggered SRS resource sets being overlapped in time and/or frequency domain) may be well handled, and the configuring and updating procedures for SRS resource may be more flexible.