TCI State Application Time Configuration for Multi-Channel Beam Alignment
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Solution Overview
Problem
Existing wireless communication systems face challenges in configuring an appropriate transmission configuration indicator (TCI) state application time for common multi-channel TCI states, leading to issues such as beam misalignment and communication disruptions.
Innovation Solution
The method involves receiving a TCI state indication from a network, which includes at least one common multi-channel TCI state, and configuring a TCI state application time based on various factors such as UE capabilities, target channels, source reference signals, and antenna panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a common multi-channel TCI state is configured for multiple channels, then configuration efficiency is improved, but beam misalignment may occur due to different processing times of different channels
Solution Approach 1:
The patent segments the common multi-channel TCI state configuration into channel-specific application times. Each channel (e.g., PDSCH, PUSCH, PDCCH, PUCCH) is assigned its own TCI state application time parameter, allowing independent control of when the TCI state takes effect for each channel. This segmentation resolves the beam misalignment issue by ensuring each channel has adequate processing time while maintaining configuration efficiency through unified TCI state indication.
Solution Approach 2:
The patent applies local quality by making the TCI state application time channel-specific rather than uniform across all channels. Each channel type receives a tailored application time parameter based on its specific processing requirements and capabilities, ensuring optimal beam alignment for each channel while maintaining the overall efficiency of common TCI state configuration.
2Reliability
If TCI state application time is extended to ensure proper beam switching, then beam alignment reliability is improved, but communication latency increases
Solution Approach 1:
The patent implements dynamic TCI state application time configuration where each channel type has its own configurable application time parameter. This allows the system to dynamically adjust the application time based on channel-specific requirements, UE capabilities, and network conditions, ensuring sufficient time for beam switching when needed while minimizing latency for channels that can process faster.
Solution Approach 2:
The patent changes the parameter of TCI state application time from a single unified value to multiple channel-specific values. By adjusting these parameters independently for different channels based on their processing capabilities and requirements, the system achieves reliable beam alignment without unnecessarily extending the application time for all channels, thus minimizing overall communication latency.
3Reliability
If channel-specific TCI state application times are configured, then beam alignment accuracy is improved, but system complexity increases
Solution Approach 1:
The patent achieves universality by using a common TCI state indication mechanism that can be applied to multiple channels, while incorporating channel-specific application time parameters. This multi-functional approach allows the same TCI state to control beamforming across different channels with different timing requirements, improving beam alignment accuracy without requiring separate TCI state configurations for each channel, thus limiting the increase in system complexity.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for configuring a transmission configuration indicator (TCI) state application time for at least one common multi-channel TCI state. A method that may be performed by a user equipment (UE) includes receiving a TCI state indication from a network, wherein the TCI state indication comprises at least one common multi-channel TCI state, and configuring a TCI state application time for the at least one common multi-channel TCI state based on one or more factors.