UE SRS Antenna Switching Configuration Feedback
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in efficiently managing SRS antenna switching configurations, leading to suboptimal performance due to lack of dynamic adaptation to user equipment (UE) and network conditions.
Innovation Solution
A method where the UE identifies suitable SRS antenna switching configurations and transmits them to the base station via MAC-CE or RRC messages, allowing the base station to select and activate the optimal configuration based on UE and network conditions, thereby optimizing antenna switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the base station uses fixed SRS antenna switching configurations, then the system complexity is reduced, but the communication efficiency and adaptability to UE conditions deteriorate
Solution Approach 1:
The patent implements dynamic SRS antenna switching configurations where the base station receives feedback from the UE about suitable configurations and adapts the antenna switching accordingly. This allows the system to transition from fixed to dynamic configurations, improving communication efficiency while managing complexity through automated feedback mechanisms.
Solution Approach 2:
The patent introduces a feedback loop where the UE evaluates different SRS antenna switching configurations and reports suitable configurations back to the base station. This feedback mechanism enables the system to optimize antenna switching based on actual UE performance and conditions, resolving the contradiction between fixed simplicity and dynamic efficiency.
2Adaptability or versatility
If the UE continuously reports SRS antenna switching configurations, then the adaptability to network conditions is improved, but the signaling overhead and network resource utilization deteriorate
Solution Approach 1:
Instead of continuous reporting, the patent implements selective reporting where the UE only reports SRS antenna switching configurations when changes are detected or when triggered by specific events. This partial action approach maintains adaptability while significantly reducing signaling overhead compared to continuous reporting.
Solution Approach 2:
The patent employs periodic reporting mechanisms where the UE reports SRS antenna switching configurations at scheduled intervals or based on predetermined triggers rather than continuously. This periodic approach balances adaptability requirements with network resource conservation.
3Adaptability or versatility
If multiple SRS antenna switching configurations are maintained, then the adaptability to different UE conditions is improved, but the device complexity and power consumption deteriorate
Solution Approach 1:
The patent applies local quality by maintaining multiple SRS antenna switching configurations only when and where they are needed based on UE conditions. Instead of uniformly maintaining all configurations, the system selectively activates specific configurations based on local UE requirements, reducing overall power consumption while preserving necessary adaptability.
Solution Approach 2:
The patent dynamically changes parameters related to SRS antenna switching configurations based on UE conditions and feedback. By adjusting configuration parameters selectively rather than maintaining all configurations at full detail, the system reduces power consumption while preserving adaptability to different UE conditions.
Data Source
AI summary
A user equipment (UE) may identify at least one suitable configuration for sounding reference signal (SRS) antenna switching and transmit the at least one suitable configuration for SRS antenna switching to the base station via a medium access control (MAC) control element (CE) (MAC-CE) or a radio resource control (RRC) message. The base station may receive the at least one suitable configuration for SRS antenna switching from the UE, and transmit an active SRS antenna switching configuration to the UE, the active SRS antenna switching configuration based on the suitable configuration for SRS antenna switching received from the UE.