User Equipment Initiated Beam Indication for 5G Networks
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Solution Overview
Problem
Current transmission configuration indication (TCI) frameworks in 3GPP specifications face challenges in efficiently managing beams for user equipment (UE) in communication networks, particularly in terms of coverage, reliability, and data rates.
Innovation Solution
The proposed solution involves user equipment (UE) initiated beam indication, where the UE determines its preferred TCI state and reports it to the base station using various signaling methods such as L1, L2, or L3 messages, based on quality measurements and configured thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network-controlled beam management is used, then beam configuration is centralized, but UE flexibility and adaptability to local channel conditions are reduced
Solution Approach 1:
The patent inverts the traditional network-controlled beam management model by enabling the UE to autonomously determine and indicate its preferred beam (TCI state) based on local channel conditions. Instead of the network selecting beams unilaterally, the UE actively selects and reports its preferred beam configuration, thereby enhancing UE flexibility and adaptability while reducing the complexity of network-side beam management calculations.
2Reliability
If frequent beam indication reporting is implemented, then beam management responsiveness is improved, but signaling overhead and processing load increase
Solution Approach 1:
The patent implements periodic beam indication reporting where the UE reports its preferred TCI state at configured intervals or upon detecting specific channel condition changes, rather than continuously reporting. This periodic approach maintains beam management responsiveness while significantly reducing signaling overhead and processing load compared to continuous reporting mechanisms.
Solution Approach 2:
The patent establishes a feedback mechanism where the UE measures downlink reference signals, determines its preferred beam, and reports this information back to the network. The network uses this feedback to configure appropriate TCI states, creating a closed-loop beam management system that improves reliability while controlling signaling overhead through intelligent feedback timing and content selection.
Data Source
AI summary
The present application relates to devices and components, including apparatus, systems, and methods for user equipment (UE) to report its preferred transmission configuration indicator (TCI) state.