UE Capability Signaling for Beam Switching and Cross-Carrier Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing antenna configurations and power utilization in user equipment (UE) for effective signal transmission, particularly in multi-user (MU) CSI enhancement, aperiodic (AP) CSI-RS beam switch timing, and cross-carrier scheduling (CCS) capability reporting.
Innovation Solution
Implementing enhanced UE capability signaling techniques, including multi-user CSI enhancement, aperiodic CSI-RS beam switch timing capability reporting, and cross-carrier scheduling (CCS) capability signaling, by using an antenna array and processor to transmit indicators such as CSI-RS, beam switch timing, and CCS capability indicators to network entities for optimal configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If detailed capability reporting is implemented in UE, then communication performance and signal transmission efficiency are improved, but device complexity and signaling overhead increase
Solution Approach 1:
The capability reporting is segmented into multiple independent indicator types (CSI-RS capability indicator, beam switch timing capability indicator, cross carrier scheduling capability indicator), allowing the network to selectively request and process only the relevant capability information needed for specific operational scenarios, rather than requiring comprehensive reporting of all possible capabilities
Solution Approach 2:
The patent implements partial capability reporting by transmitting only specific capability indicators that are relevant to current network configuration and operational needs. The network entity can request subsets of capability information based on what is currently required, avoiding the overhead of transmitting complete capability sets that may not all be utilized
2Productivity
If antenna array configurations are optimized for signal transmission, then transmission efficiency is improved, but power consumption and device complexity increase
Solution Approach 1:
The antenna array configuration is made dynamic through the beam switch timing capability indicator, which allows the UE to adaptively adjust beam switching behavior based on current channel conditions and network requirements. This dynamic adjustment enables the system to optimize signal transmission efficiency only when and where needed, rather than maintaining maximum performance configurations continuously, thereby reducing overall power consumption
Solution Approach 2:
The patent applies local quality optimization by enabling enhanced antenna configurations and beamforming capabilities only in specific spatial directions and operational scenarios where they provide the most benefit. The cross carrier scheduling capability indicator allows different antenna configurations to be applied to different carriers or frequency resources, optimizing transmission efficiency locally rather than uniformly across all transmissions
Data Source
AI summary
Embodiments are directed to techniques to implement full power transmission in a user equipment (UE). An embodiment of a user equipment (UE) comprises an antenna array comprising a plurality of antenna elements, and a processor to cause the UE to establish a communication connection with a network entity; cause the UE to transmit, to the network entity, at least one of a channel state information reference signal (CSI-RS) capability indicator, a beam switch timing capability indicator, or a cross carrier scheduling capability indicator.