Wireless Beam Reception with TCI States for Lower Signaling Complexity
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Solution Overview
Problem
Existing wireless communication systems face challenges in selecting appropriate beams for signal transmission and reception due to insufficient signaling information, leading to inefficiencies and potential misalignment between wireless devices and base stations.
Innovation Solution
A wireless device configures a transmission control indicator (TCI) state to manage antenna panel activation and deactivation based on scheduling offsets and overlapping signals, enabling efficient data transfer and reduced latency by reporting activation status to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices use multiple beams for transmission and reception, then signal coverage and connectivity are improved, but beam selection complexity and signaling requirements increase
Solution Approach 1:
The patent introduces TCI states as intermediary elements that map beam configurations to signal reception. Instead of directly managing multiple beams, the system uses TCI states as mediators to indicate which beam should be used for receiving downlink signals, simplifying the beam selection process while maintaining multiple beam capabilities for improved signal reliability
Solution Approach 2:
The patent segments beam management into separate components: beam configuration, TCI state indication, and signal reception. By separating the beam selection function into distinct TCI states that can be independently configured and indicated, the system reduces the complexity of managing multiple beams while maintaining the ability to select optimal beams for reliable communication
2Productivity
If antenna panels are activated and deactivated dynamically, then data transfer efficiency is improved, but control signaling and coordination requirements increase
Solution Approach 1:
The patent implements feedback mechanisms where wireless devices report their antenna panel activation status to the network, and the network responds with appropriate scheduling decisions. This feedback loop enables efficient data transfer by activating only the necessary antenna panels while providing sufficient control information through standardized signaling protocols
Solution Approach 2:
The system performs preliminary configuration of antenna panel activation states before actual data transmission begins. By pre-configuring which antenna panels should be active based on predicted communication needs and scheduling offsets, the system improves data transfer efficiency while reducing real-time signaling requirements
Data Source
AI summary
A wireless device and/or a base station may select one or more beams among multiple beams for transmission and/or reception of signals. At least one transmission control indicator (TCI) state of at least two TCI states may be used to receive a downlink signal based on a scheduling offset and the downlink signal overlapping in time with a physical downlink channel transmission.