Event-Triggered CSI Reporting for Beam-Aware Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently reporting channel state information (CSI) due to the lack of a standardized method for terminals to initiate CSI reporting based on specific events, leading to suboptimal network performance and resource allocation.
Innovation Solution
A method and apparatus for terminals to receive configuration information on CSI reporting from a base station, detect relevant events, and transmit CSI indicators and data on physical uplink control and shared channels, allowing for more precise and timely CSI reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals transmit CSI reporting frequently to improve network performance, then network performance and resource allocation improve, but uplink control channel overhead and terminal power consumption increase
Solution Approach 1:
The patent implements dynamic CSI reporting by allowing terminals to autonomously determine whether to trigger CSI reporting based on detected events (such as beam failure detection). The reporting frequency and timing are not fixed but adapt based on network conditions and event occurrence, resolving the contradiction between frequent reporting for performance and power consumption avoidance.
Solution Approach 2:
The patent establishes a feedback mechanism where terminals monitor channel conditions and beam status, then provide CSI feedback to the base station when specific events occur. This event-driven feedback approach ensures network performance is maintained through timely updates while avoiding unnecessary transmissions that would consume terminal power, thus resolving the contradiction between reliability and energy loss.
2Loss of time
If terminals initiate CSI reporting based on specific events to improve timing precision, then CSI reporting timeliness improves, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having terminals pre-configure event triggers and monitoring parameters based on base station instructions. Terminals are prepared in advance with event detection criteria (such as beam failure thresholds), enabling them to immediately initiate CSI reporting when events occur without complex real-time decision-making, thus achieving timely reporting with controlled complexity.
Solution Approach 2:
The patent segments the CSI reporting process into distinct event types (beam failure events, channel quality events, etc.), each with specific triggering conditions and reporting procedures. This segmentation allows terminals to implement simple event-specific logic rather than complex overall decision-making, improving timeliness while managing device complexity through modular event handling.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure relates to operations of a terminal and a BS in a wireless communication system and, more specifically, to a method for reporting reception beam performance by a UE in a wireless communication system and an apparatus capable of performing the same. The disclosure provides an apparatus and a method capable of effectively providing a service in a mobile communication system.